During the First Year of Its Operation, Only 20% of the Projects

question 3

Essay

During the first year of its operation, only 20% of the projects scheduled for the Hubble Space Telescope involved taking images and pictures of celestial objects. The remaining 80% of the telescope's time was devoted to observing the spectrum of celestial objects.
Why do astronomers place such a high emphasis on looking at the spectrum of a celestial object rather than an image? Explain.

---

Definitions:

Rational Expression

An expression formed by the ratio of two polynomials, essentially a fraction wherein both the numerator and the denominator are polynomials.

Rational Expression

An expression that can be written as a fraction where both the numerator and the denominator are polynomials.

Rational Function

A rational function is a ratio of two polynomials, where the denominator polynomial is not zero, used to describe relations that involve rates of change.

Undefined

A term used to describe an expression or result that does not have a meaningful value under given conditions, such as division by zero.